wheelchair controllers

[mick]

Has anyone/any forums/blogs covered wheelchair controllers?
I have been asked to help someone with a duff chair but there is no manual or circuit diagram and its been much worked on in its long life.
Is there a generic circuit for a two motor 24volt single joystick control system that I can work from?
My electronics are a tadge above basic but I am very familiar with control ccts.
I can usually get somewhere with a diagram.
This is a heavy duty off road two wheel drive plus two jockey chair that gets a lad out to see his favourite steam engines and machines and I would like to help.
Thanks in anticipation
Mick

 

[mvs sarma]

Has anyone/any forums/blogs covered wheelchair controllers?
I have been asked to help someone with a duff chair but there is no manual or circuit diagram and its been much worked on in its long life.
Is there a generic circuit for a two motor 24volt single joystick control system that I can work from?
My electronics are a tadge above basic but I am very familiar with control ccts.
I can usually get somewhere with a diagram.
This is a heavy duty off road two wheel drive plus two jockey chair that gets a lad out to see his favourite steam engines and machines and I would like to help.
Thanks in anticipation
Mick

please see the latest Elektor summer circuits 2009, there is one article -wheelie
that perhaps suits your needs
balance mods can be thought over